DiFfRG::QuadratureProvider Class Reference

A class that provides quadrature points and weights, in host and device memory. The quadrature points and weights are computed either the GSL quadratures or the MatsubaraQuadrature class. This avoids recomputing the quadrature points and weights for each integrator. More...

#include <quadrature_provider.hh>

Public Member Functions
	QuadratureProvider ()
	QuadratureProvider (const JSONValue &json)
template<typename NT = double, typename MemorySpace = CPU_memory>
auto	nodes (const size_t order, const QuadratureType type=QuadratureType::legendre)
	Get the quadrature points for a quadrature of size quadrature_size.
template<typename NT = double, typename MemorySpace = CPU_memory>
auto	weights (const size_t order, const QuadratureType type=QuadratureType::legendre)
	Get the quadrature weights for a quadrature of size quadrature_size.
template<typename NT = double, typename MemorySpace = CPU_memory>
auto	matsubara_nodes (const NT T, const NT typical_E)
	Get the quadrature points for a quadrature of size quadrature_size.
template<typename NT = double, typename MemorySpace = CPU_memory>
auto	matsubara_weights (const NT T, const NT typical_E)
	Get the quadrature weights for a quadrature of size quadrature_size.
template<typename NT = double>
NT	matsubara_T (const NT T, const NT typical_E)
	Get the effective temperature for the Matsubara zero-mode weight. Returns 0 for vacuum (T=0) quadratures and the physical T for Monien quadratures.

Private Attributes
internal::MatsubaraStorage	matsubara_storage
internal::QuadratureStorage	quadrature_storage
int	verbosity

Detailed Description

A class that provides quadrature points and weights, in host and device memory. The quadrature points and weights are computed either the GSL quadratures or the MatsubaraQuadrature class. This avoids recomputing the quadrature points and weights for each integrator.

Constructor & Destructor Documentation

QuadratureProvider() [1/2]

DiFfRG::QuadratureProvider::QuadratureProvider

(

)

QuadratureProvider() [2/2]

DiFfRG::QuadratureProvider::QuadratureProvider

(

const JSONValue &

json

)

Member Function Documentation

matsubara_nodes()

template<typename NT = double, typename MemorySpace = CPU_memory>

auto DiFfRG::QuadratureProvider::matsubara_nodes ( const NT T, const NT typical_E )

inline

Get the quadrature points for a quadrature of size quadrature_size.

Parameters

quadrature_size

Size of the quadrature.

Returns

const std::vector<double>&

matsubara_T()

template<typename NT = double>

NT DiFfRG::QuadratureProvider::matsubara_T ( const NT T, const NT typical_E )

inline

Get the effective temperature for the Matsubara zero-mode weight. Returns 0 for vacuum (T=0) quadratures and the physical T for Monien quadratures.

matsubara_weights()

template<typename NT = double, typename MemorySpace = CPU_memory>

auto DiFfRG::QuadratureProvider::matsubara_weights ( const NT T, const NT typical_E )

inline

Get the quadrature weights for a quadrature of size quadrature_size.

Parameters

quadrature_size

Size of the quadrature.

Returns

const std::vector<double>&

nodes()

template<typename NT = double, typename MemorySpace = CPU_memory>

auto DiFfRG::QuadratureProvider::nodes ( const size_t order, const QuadratureType type = QuadratureType::legendre )

inline

Get the quadrature points for a quadrature of size quadrature_size.

Parameters

quadrature_size

Size of the quadrature.

Returns

const std::vector<double>&

weights()

template<typename NT = double, typename MemorySpace = CPU_memory>

auto DiFfRG::QuadratureProvider::weights ( const size_t order, const QuadratureType type = QuadratureType::legendre )

inline

Get the quadrature weights for a quadrature of size quadrature_size.

Parameters

quadrature_size

Size of the quadrature.

Returns

const std::vector<double>&

Member Data Documentation

matsubara_storage

internal::MatsubaraStorage DiFfRG::QuadratureProvider::matsubara_storage

private

quadrature_storage

internal::QuadratureStorage DiFfRG::QuadratureProvider::quadrature_storage

private

verbosity

int DiFfRG::QuadratureProvider::verbosity

private

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The documentation for this class was generated from the following file:

• /home/runner/work/DiFfRG_current/DiFfRG_current/DiFfRG/include/DiFfRG/common/quadrature/quadrature_provider.hh